Related Manuals for UNI-T UT501
Summary of Contents for UNI-T UT501
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Page 1: Table Of Contents
UT501/UT502 OPERATING MANUAL Table of Contents Title Page Introduction Unpacking the Meter Safety Information International Electrical Symbols The Meter Structure Key Functions Rotary Switch Measurement Operation A. Measuring Voltages B. Measuring Insulation Resistance... - Page 2 UT501/UT502 OPERATING MANUAL Maintenance General Service Replacing the Battery Specifications Safety and Compliances Physical Specifications General Specifications Feature Summary Detailed Accuracy Specifications Voltage Measurement UT501: Insulation Resistance Measurement UT502: Insulation Resistance Measurement...
- Page 3 UT501/UT502 OPERATING MANUAL List of Tables Table Title Page Unpacking Inspection International Electrical Symbols Meter Front Description Key Description Rotary Switch Description List of Figures Figure Title Page The Meter Front Structure Voltages Measurement Insulation Resistance Measurement Battery Replacement...
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Page 4: Introduction
UT501/UT502 OPERATING MANUAL Introduction Uni-Trend Model UT501 and UT502 insulation resistance tester (hereafter, "the Meter") is a handheld instrument designed primarily to make resistance/ insulation resistance, DC/AC Voltage measurement. Unpacking the Meter The Meter includes the following items:... -
Page 5: Unpacking Inspection
UT501/UT502 OPERATING MANUAL Table 1. Unpacking Inspection Item Description English Operating Manual 1 piece Test Lead 1 set Test probe 1 set Alligator clip 1 set Carry bag 1 piece Strap 1 piece 1.5V Battery (LR14) 6 pieces In the event you find any missing or damage, please contact your dealer immediately. -
Page 6: Safety Information
UT501/UT502 OPERATING MANUAL Safety Information This Meter complies with the standards IEC61010 -1 safety measurement requirement: in pollution degree 2, overvoltage category (CAT. III 600V, CAT.II 1000V) and double insulation. CAT II: Local level, appliance, portable equipment etc., with smaller transient voltage overvoltages than CAT. -
Page 7: International Electrical Symbols
UT501/UT502 OPERATING MANUAL Danger identifies conditions and actions that pose hazard(s) to the user. Warning identifies avoiding electric shock. Caution identifies conditions and actions that may damage the Meter and carrying out accurate measurement. International electrical symbols used on the Meter and in this Operating Manual are... - Page 8 UT501/UT502 OPERATING MANUAL Danger Use of instrument in a manual not specifed by the manufactuer may impair safety features/protection provided by the equipment. Read the following safety information carefully before using or servicing the instrument. Do not apply more than 1000V DC or 750V AC.
- Page 9 UT501/UT502 OPERATING MANUAL Warning Do not use the Meter if it is damaged or metal part is exposed. Look for cracks or missing plastic. Be careful when working above 30V rms, 46.7V ac rms and 70V DC. Such voltages pose a shock hazard.
- Page 10 UT501/UT502 OPERATING MANUAL Caution When performing resistance tests, remove all power from the circuit to be measured and discharge all the power. When servicing the Meter, use only the same model number or identical electrical specifications of test leads and power adaptor.
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Page 11: International Electrical Symbols
UT501/UT502 OPERATING MANUAL International Electrical Symbols International symbols on the Meter and in this manual are explained in Table 2. Table 2. International Electrical Symbols Equipment protected by double or reinforced insulation. DC Measurement AC Measurement Grounding See Manual Conforms to Standards of European... -
Page 12: The Meter Structure
UT501/UT502 OPERATING MANUAL The Meter Structure Below Figure 1 and Table 3 shows the Meter front structure and description. a.UT501 b.UT502 Figure 1. The Meter Front Structure... -
Page 13: Meter Front Description
UT501/UT502 OPERATING MANUAL Table 3. Meter Front Description EARTH: Resistance input terminal G: Voltage Measurement input negative terminal V: Voltage input terminal LINE: Resistance input terminal Display Backlight button Data Hold button Insulation Resistance Button Rotary switch... -
Page 14: Key Functions
UT501/UT502 OPERATING MANUAL Key Functions Table 4. Key Description HOLD Press once to turn the data hold on, is shown on the display. Press again to turn the data hold feature off. is disappeared. LIGHT Press once to turn the display backlight on. -
Page 15: Rotary Switch
UT501/UT502 OPERATING MANUAL Rotary Switch Table 5. Rotary Switch Description ON/OFF Turn on or off the Meter. Turn the rotary switch to ACV to measure AC Voltage Turn the rotary switch to DCV to measure DC Voltage 250V/500V/1000V Turn the rotary switch to 250V/500V/1000V, select the... -
Page 16: Measurement Operation
UT501/UT502 OPERATING MANUAL Measurement Operation Below section explains how to make measurements. A. Measuring Voltages a.UT501 b.UT502 Figure 2. Voltages Measurement... - Page 17 UT501/UT502 OPERATING MANUAL Catuion To avoid harm to you or damages to the Meter from electric shock, do not attemptto meaure voltages higher than 1000V DC or 750V rms AC although readings may be obtained. When voltage measurement has been completed, disconnect the connection between the testing leads and the circuit under test and remove testing leads away from the input terminals of the Meter.
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Page 18: Measuring Insulation Resistance
UT501/UT502 OPERATING MANUAL B. Measuring Insulation Resistance a.UT501 b.UT502 Figure 3. Insulation Resistance Measurement... - Page 19 UT501/UT502 OPERATING MANUAL Caution When measuring insulation resistance, please must separate the two test leads. When performing insulation resistance tests, remove all power from the circuit to be measured and discharge all the power. Do not short circuit two test leads under high voltage status.
- Page 20 UT501/UT502 OPERATING MANUAL Turn the rotary switch to one of these position 250V / 500V / 1000V / 2500V. 1. When performing insulation resistance tests, remove all power from the circuit to be measured and discharge all the power. 2. Insert the red test lead into the LINE terminal and the black test lead into EARTH terminal.
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Page 21: Maintenance
UT501/UT502 OPERATING MANUAL Maintenance This section provides basic maintenance information including battery replacement instruction. Warning Do not attempt to repair or service your Meter unless you are qualified to do so and have the relevant calibration, performance test, and service information. - Page 22 UT501/UT502 OPERATING MANUAL Turn the Meter to OFF when it is not in use. Take out the battery when it is not using for a long time. Do not use or store the Meter in a place of humidity, high temperature, explosive, inflammable and strong magnetic field.
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Page 23: Replacing The Battery
UT501/UT502 OPERATING MANUAL B. Replacing the Battery Figure 4. Battery Replacement... - Page 24 UT501/UT502 OPERATING MANUAL Caution Donít mix to use old and new batteries. Be careful the polarity is correct when installing batteries. Danger Make sure the battery compartment is closed before using the Meter Follow Figure 4 and proceed as follows to replace the battery: Turn the Meter to OFF and remove all connections from the terminals.
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Page 25: Specifications
UT501/UT502 OPERATING MANUAL Specifications Safety and Compliances Certification IEC 61010 -1 CAT.II 1000V, CAT.III 600V Compliances overvoltage and double insulation standard... -
Page 26: Physical Specifications
UT501/UT502 OPERATING MANUAL Physical Specifications Display (LCD) Digital: 1999 counts Operating Temperature Storage Temperature ~140 Relative Humidity 70% @ 0 below; 80% @ -20 Battery Type 6pcs of 1.5V (LR14) batteries Dimensions (H x W x L) 150 x 100 x 71 mm Weight Approx. -
Page 27: General Specifications
UT501/UT502 OPERATING MANUAL General Specifications Over loading UT501: Display 1 on insulation resistance range. Voltage display > 1999, display 1 Overload voltage testing is not allowed in this Meter. UT502: Display OL when overload testing on every range. Battery Indicator... -
Page 28: Detailed Accuracy Specifications
UT501/UT502 OPERATING MANUAL Detailed Accuracy Specifications Accuracy: ([a% of reading] + [number of least significant digits]), guarantee for 1 year. Operating temperature: 18 Relative humidity: 45~75%RH A. Voltage Measurement DC Voltage AC Voltage Measurement Range 30 ~ 1000V 30V~750V (50/60Hz) -
Page 29: Ut501: Insulation Resistance Measurement
UT501/UT502 OPERATING MANUAL B. UT501: Insulation Resistance Measurement 250V Output Voltage 500V 1000V 3M ~2000M Display Range (When around less than 4.3M , test lead insulation is bad or invalid, buzzer will beeps) DC250V Open Circuit Voltage DC500V DC1000V 0.9mA~1.1mA @250k Test Current 0.9mA~1.1mA @500k... -
Page 30: Ut502: Insulation Resistance Measurement
UT501/UT502 OPERATING MANUAL UT502: Insulation Resistance Measurement Output Voltage 500V 1000V 2500V ~20G Display Range (less than 3M, buzzer beeps (less than 5M, buzzer beeps (less than 25M, buzzer beeps and 0M will be shown) and 0M will be shown) - Page 31 UT501/UT502 OPERATING MANUAL This operating manual is subject to change without notice.
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